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  <title>返回当前进程 id</title>
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    <li>返回当前进程 id</li>
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  <div id="layout-content"><div id="function.posix-getpid" class="refentry">
    <div class="refnamediv">
        <h1 class="refname">posix_getpid</h1>
        <p class="verinfo">(PHP 4, PHP 5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">posix_getpid</span> &mdash; <span class="dc-title">返回当前进程 id</span></p>

    </div>

    <div class="refsect1 description" id="refsect1-function.posix-getpid-description">
        <h3 class="title">说明</h3>
        <div class="methodsynopsis dc-description">
            <span class="methodname"><strong>posix_getpid</strong></span>(): <span class="type">int</span></div>

        <p class="para rdfs-comment">
            Return the process identifier of the current process.
            返回当前进程的 id
        </p>
    </div>


    <div class="refsect1 parameters" id="refsect1-function.posix-getpid-parameters">
       <h3 class="title">参数</h3>
       <p class="para">此函数没有参数。</p>
    </div>


    <div class="refsect1 returnvalues" id="refsect1-function.posix-getpid-returnvalues">
        <h3 class="title">返回值</h3>
        <p class="para">
            返回进程 id 号，是整型（<span class="type">int</span>）。
        </p>
    </div>


    <div class="refsect1 examples" id="refsect1-function.posix-getpid-examples">
        <h3 class="title">范例</h3>
        <p class="para">
            <div class="example" id="example-3292">
                <p><strong>示例 #1 <span class="function"><strong>posix_getpid()</strong></span> 的使用例子</strong></p>
                <div class="example-contents">
                    <div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /></span><span style="color: #007700">echo&nbsp;</span><span style="color: #0000BB">posix_getpid</span><span style="color: #007700">();&nbsp;</span><span style="color: #FF8000">//8805<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
                </div>

            </div>
        </p>
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    <div class="refsect1 seealso" id="refsect1-function.posix-getpid-seealso">
        <h3 class="title">参见</h3>
        <p class="para">
            <ul class="simplelist">
                <li class="member"><span class="function"><a href="function.posix-kill.html" class="function" rel="rdfs-seeAlso">posix_kill()</a> - Send a signal to a process</span></li>
                <li class="member">POSIX man page GETPID(2)</li>
            </ul>
        </p>
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